Since you need some sort of refresher:
How are they different? What are the advantages? Why are they difficult to mass-produce? Who's trying to make them?
www.autoblog.com
"Japan's
Toyota Motor Corp is one of the front runners to mass produce solid-state batteries. It has said it is struggling with their short service life but still intends to start making them by mid 2020s.
In addition to Toyota's in-house research, it has teamed up with
Japan's Panasonic Corp to develop these powerpacks with their Prime Planet Energy & Solutions Inc venture.
Close on their heels, Germany's
Volkswagen has invested in Bill Gates-backed U.S. battery firm QuantumScape Corp, which aims to introduce its battery in 2024 for
VW's EVs and eventually for other carmakers.
VW says the battery will offer about 30% more range than a liquid one and charge to 80% capacity in 12 minutes, which is less than half the time of the fastest charging li-ion cells now available.
Stellantis, formed in January by the merger of Italian-American automaker
Fiat Chrysler and France's PSA, has a venture called Automotive Cells Co with TotalEnergies and a partnership with
China's Contemporary Amperex Technology Co Ltd (CATL). Stellantis intends to introduce solid-state batteries by 2026.
Ford Motor Co and
BMW AG have invested in startup Solid Power, which says its solid-state technology can deliver 50% more energy density than current lithium-ion batteries. Ford expects to cut battery costs by 40% by mid-decade.
South Korea's
Hyundai Motor, which has invested in startup SolidEnergy Systems, plans to mass produce solid-state batteries in 2030.
Samsung SDI Co Ltd, an affiliate of Samsung Electronics Co Ltd, is working on developing solid-state batteries.
EV market leader
Tesla Inc has so far not said it wants to develop or use solid-state cells in its cars."